Speedrunning this game requires a lot of skill. It needs you to memorize almost every level and how to beat them while finishing all 24 levels in a short amount of time, all I have to say is if you're not stressed then you are the one who should teach me. Some of the levels near the end of the game take a lot of skill especially if you are speedrunning, so skill can't get you a good time alone but strategy can. If you imply a better strategy to a level you struggle in you can get a significantly better time on it. Some strategies that can help you are: In level 4 you can jump to the door on the 3rd platform instead of the 4th. During level 10 you can get stuck on one of the gaps so wait for a second before moving into the level. You can learn other strategies from watching what other speedruners that are faster than you do during the levels. You need some patience because it can take you over a week to perfect a strategy in some cases, so if you aren't a fast learner you might want to practice more often. The last tip I will give you is that you can set a timer for how fast you want to be then play the game whenever the timer rings check what level you are at and note it you can keep doing this until you beat the game before the timer goes off then set a better time and try again repeat this process until you are satisfied. This simulates the stress you feel when you are recording you're speedrun and gives you a good estimate of how fast you are. Thank you for reading this!